Half to james stewart



(No Model.)

R. GROMMER. TROLLEY POLE FOB RAILWAY CARS.

INVENTQR.

Patented Sept. 17, 1895.

N Na;

AM Im IGIIAHAH. more-mo. WASHIN 5m" M) UNITED STATES PATENT @EEicE.

ROBERT CROMMER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE- I-IALFTO JAMES STEWART, JR, OF SAME PLACE.

TROLLEY-POLE FOR RAI LWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 546,303, datedSeptember 17, 1895.

Application filed January 29, 1895. gerial No. 535,517. (No model.)

To all whom. it may concern; A. Fig. is a longitudinal section of the Beit known that I, ROBERT CROMMER, a forward end of the sleeve. Fig. 6 isa face citizen of the United States, residing at Philaviewof the flangeof the bracket G, showing delphia, in the county of Philadelphia and theseries of intermediate friction-rollers f. 5 5 State of Pennsylvania,have invented a new Fig. 7 is a cross-section of the forward end of anduseful Improvement in Trolley-Poles for the pivotal rod A, showing thelog or projec- Railway- Cars, of which the following is a tion d. Fig. 8is a view of the end of the specification. I sleeve B. Fig. 9 is asideview of the forward The improvement consists in a pivotal rod end of thepivotal red A. Fig. 10 is a side 63 [0 connected to the upper end ofthe' main por- View of same in connection with a correspondtion of thetrolley-pole, which pivotal rod has ing section of the sleeve 13. Fig.11 is a side an inverted cone upon its lower end, whose view of the endportion of the pivotal rod A apex hears upon the surface of the upperend within the sleeve. Fig. 12 is a side view of of said main portion,said pivotal rod or atforward end of sleeve. 65 IS tachinent to the mainportion being surround- Like letters of reference in all the figures edby an incasing sleeve rigidly connected at indicate the same parts. itslower end to the trolley-pole by any suit- A is the trolley-pole, whichis destined to able locking device for maintaining the two be connectedat its lower extremity to the portions in contact with each other. Thisroof of a car. To the upper extremity of the 70 2 0 sleeve is providedwith a flange upon its uppole A is connected the sleeve B, which snr perend. Upon the upper and exposed and rounds the forward end portion ofthe pole cirof the pivotal rod is a flange consisting of ancumferentially and is rigid therewith. Withobliquelytruncated cylindercarrying the in this sleeve is situated the pivotal rod A, bracket forsupporting the trolley-wheel, having a conical lower end whose pointrests 75 which revolves upon a journal having bearupon the crown ofthetrolley-pole A to perings in said bracket. The bracket is proinit ofan easy swivel movement thereon. vided with a pair of curved projectingforked The outer and upper end of this rod A cararms pivotally withjournal carrying the trolries upon its extremity the bracket or headicy-wheel andwhich are counterbalanced to 0, provided with theperipheral grooved trol- 8o 0 straddle the wire by means of weights uponley-wheel D, supported on the journals 1) in their inner extremities.The locking device the lugs c of said head. Having pivotal contorconnecting the pivotal rod and sleeve tonection on the journals 1)outside of the lugs gether consists of a lugprojected from the side 0are the flaring arms or prongs E, (seen in of said rod, which enters andpasses through Figs. 1, 2, and 4,) which straddle the electrical S aninternal longitudinal groove of the end of Wire G and assist in guidingand retaining the sleeve, into which the lug slides a short thetrolley-wheel D in connection therewith. distance, when the lug meets acorresponding These arms are balanced to retain them in groove formed atright angles to that pretheir upright position by means of the weightsviously mentioned, into which the lug passes 70 on the arms Z, thepreponderance of weight 0 when the sleeve is partially revolved, therebyin the lower portion of the bracket or head 0 locking the rod and sleevetogether. retaining the groove in the trolley-wheel D in In theaccompanying drawings, which make a parallel line with the electricalwire G to a part of this specification, Figure 1 is a lonreadily formcontact therewith. Theflange gitudinal sectionof the improvedtrolley-pole, 0f the sleeve has also a preponderance of 5 taken throughthe line a. b of Fig. 2. Fig. 2 weight upon its lower portion, so thatwhen is a like View taken .at right angles to that the projection cl ofthe pivotal rod A is inshown in Fig. 1. Fig. 3 is a side elevation ofserted within the slot e of the sleeve B, the the upper end of thepivotal rod A with the weight being upon one portion of said flangetrolley-wheel D in the bracket or head 0. draws said rod around untilthe weight is Ice Fig. 4 is a side view of the trolley-wheel D, upon theunder side. The pivotal rod is sethe forked arms E, and the pivotedpoint-rod cured within the sleeve by its insertion therein, theprojection or lug d of the rod passing into and through theslot eof saidsleeve until it reaches the cross-channel h, when the lug cl enters thelatter and is drawn around therein by the partial revolution of the rod,which looks and secures the latter in place.

What I claim herein as new, and desire to secure by Letters Patent, is-

1. The pivotal rod A, having the conical point upon its lower end, andprovided with the bracket, or head 0, having a truncated flanged base,the trolley wheel D, hung on the journals 1), in the lugs c, and theforked arms E, pivoted on said journals, and provided with balanceweights is, on the studs, or posts manner herein shown and described forthe 25 purpose set forth.

ROBERT CROMMER. WVitnesses:

THOMAS J. BEWLEY, J. R. MAssEY.

